Home / 113,965.74-157,256.10-71,537.94

Finding the Fourth Proportional to 113,965.74, 157,256.10 and 71,537.94

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Solution

The fourth proportional to 113,965.74, 157,256.10 and 71,537.94 is: 98,711.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,965.74 : 157,256.10 = 71,537.94 : x
  2. Step 2: Convert to fraction form
    113,965.74/157,256.10 = 71,537.94/x
  3. Step 3: Cross multiply
    113,965.74x = 157,256.10 × 71,537.94
  4. Step 4: Simplify right side
    113,965.74x = 11,249,777,446.43
  5. Step 5: Solve for x
    x = 11,249,777,446.43/113,965.74
  6. Step 6: Final answer
    x = 98,711.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.